I will only post once. I just got what I deserved for trusting interlock for their so call warranty. Their so call warranty clauses' bottom line do not care if ur product is faulty or not. They just want to earn money regardless if their product is genuinely faulty or not. Beware that even if the so call warranty period is still valid, they can accuse u of abusing the hardware which can void the warranty but still charge u money. Please read thoroughly on their warranty clause page and you will see that for any reason of fault on the locks, they can and will void the warranty at their own discretion and still charge u. Please read between the lines and judge if the clauses are indeed only beneficial to interlock and not the consumer. I'm very sure I'm not the 1st to rant on them. Potential buyers looking to purchase anything from interlock, please do yourself a favour by searching forum threads on them to get a better understanding of their business model. Do not trust what des*ond says before the sales about good aftersales service. It comes only after you pay more $$. I've stated enough facts, up to you guys to believe or not.